如何解决Python错误：列表索引超出范围
def item(id):
return posts.loc[posts['post_id'] == id]['title'].tolist()[0]
def get_recommendations(postid,num,indices):
idx = indices[postid]
sim_scores = list(enumerate(cosine_similarities[idx]))
sim_scores = sorted(sim_scores,key=lambda x: x[1],reverse=True)
sim_scores = sim_scores[1:num+1]
# print(sim_scores)
indices = [i[0] for i in sim_scores]
print("Recommending " + str(num) + " posts similar to \"" + item(postid) + "\" ...")
return posts.iloc[indices]
IndexError Traceback (most recent call last)
<ipython-input-58-54719cff7892> in <module>()
----> 1 show_recomm('5d6d39567fa40e1417a4931c',10,indices)
1 frames
<ipython-input-45-dfd12eb7d387> in show_recomm(postid,indices)
6 print(similarity_scores)
7 indices = [i[0] for i in similarity_scores]
----> 8 print("Recommending " + str(num) + " posts similar to \"" + item(postid) + "\" ...")
9 return posts.iloc[indices,:-1]
<ipython-input-44-6739fecf9da1> in item(id)
1 def item(id):
----> 2 return posts.loc[data['post_id'] == id]['title'].tolist()[0]
IndexError: list index out of range
当我尝试使用具有不同帖子ID的函数时出现此错误。对于某些人，我得到了输出，对于其他ID，我没有得到。
解决方法
基于我上面看到的内容。似乎是由于
data['post_id'] == id
这是对还是错。你是说
def item(id):
return posts.loc[id]['title'].tolist()[0]
版权声明：本文内容由互联网用户自发贡献，该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容， 请发送邮件至 dio@foxmail.com 举报，一经查实，本站将立刻删除。